CRS or + ??

NeilGabriel
NeilGabriel Posts: 1,487
edited September 2010 in Vintage Speakers
I have a post buried on this....is this the + model? see pics.

I know music is in the ear of the beholder....but why such a difference of opinions on CRS v. CRS+. I have only heard the +.

The front side is posted with my SDA RTA v. CRS post below...I can't get it to attach now...

http://www.polkaudio.com/forums/showthread.php?t=106466
Post edited by NeilGabriel on
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  • heiney9
    heiney9 Posts: 25,165
    edited September 2010
    There were two CRS+ models 1987 and 1989.

    The SDA CRS+ (blade/blade model) uses (2) MW6510 and (1) SW100 passive radiator and (1) tweeter

    The SDA CRS+ (PIN/blade model) uses (1) MW6510 and (1) MW6511 and (1) SW102 passive radiator and (1) tweeter.

    So based on the above info you should be able to determine what you have.

    H9
    "Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass Pass Labs XA25 | EE Avant Pre | EE Mini Max Supreme DAC | MIT Shotgun S1 | Pangea AC14SE MKII | Legend L600 | BlueSound Node 3 - Tubes add soul!
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  • heiney9
    heiney9 Posts: 25,165
    edited September 2010
    NeilGabriel wrote: »
    I have a post buried on this....is this the + model? see pics.

    I know music is in the ear of the beholder....but why such a difference of opinions on CRS v. CRS+. I have only heard the +.

    The front side is posted with my SDA RTA v. CRS post below...I can't get it to attach now...

    http://www.polkaudio.com/forums/showthread.php?t=106466

    Ummmmmm........ because they are two different speakers. The CRS uses (2) tweeters and different drivers and x-over than the CRS+ which uses (1) tweeter. The 1989 CRS+ (pin/blade) is the model to get with the MW6510 for the stereo driver and MW6511 for the dimensional driver.

    All SDA's that use the two side by side tweeters sound a lot different. The 2nd tweeter is a dimensional tweeter and it can sound kind of "phasey" at times and a tad unnatural. Later on in development Polk found it unnecessary to use the dimensional tweeter as it actually detracted from the presentation they were looking for.

    H9
    "Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass Pass Labs XA25 | EE Avant Pre | EE Mini Max Supreme DAC | MIT Shotgun S1 | Pangea AC14SE MKII | Legend L600 | BlueSound Node 3 - Tubes add soul!
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  • NeilGabriel
    NeilGabriel Posts: 1,487
    edited September 2010
    Thanks a lot....I have been searching for pics and looking at different models and I can see what you are saying.

    I noticed that the back of the CRS says SDA Compact on the back and at least one model of the CRS+ says SDA Compact Reference System....

    I totally agree with the quote you have had on your posts...I guess I am probably asking about the sound differences between the speakers or quality....right now, I can't afford to buy a pair of each to listen to....
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  • Joe08867
    Joe08867 Posts: 3,919
    edited September 2010
    Single tweeter CRS's are CRS+. I am unsure if you can TL Mod both models though?

    Like H9 said: the dimensional tweeter can sound phasey or tinny and detracts from the sound IMHO. I have them in my SDA2's and disconnected them. They sound much better now.
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  • heiney9
    heiney9 Posts: 25,165
    edited September 2010
    NeilGabriel wrote: »
    Thanks a lot....I have been searching for pics and looking at different models and I can see what you are saying.

    I noticed that the back of the CRS says SDA Compact on the back and at least one model of the CRS+ says SDA Compact Reference System....

    I totally agree with the quote you have had on your posts...I guess I am probably asking about the sound differences between the speakers or quality....right now, I can't afford to buy a pair of each to listen to....


    Like I said, the easiest way to tell the difference between the CRS+ models is if it's blade/blade or pin/blade. The pin/blade uses the same drivers and x-over as the 3rd version of the SDA 2B.

    Which type of interconnect does yours use? b/b pr p/b?
    "Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass Pass Labs XA25 | EE Avant Pre | EE Mini Max Supreme DAC | MIT Shotgun S1 | Pangea AC14SE MKII | Legend L600 | BlueSound Node 3 - Tubes add soul!
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  • NeilGabriel
    NeilGabriel Posts: 1,487
    edited September 2010
    I have not gotten my hands on the CRS+ I am looking at...I am talking to two guys, one with CRS and one with CRS+....not sure of the CRS+ year yet....
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  • thejck
    thejck Posts: 849
    edited September 2010
    There is a set of CRS for sale in Lawrence KS. I have no idea where Wheatfield is.
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  • NeilGabriel
    NeilGabriel Posts: 1,487
    edited September 2010
    thejck wrote: »
    There is a set of CRS for sale in Lawrence KS. I have no idea where Wheatfield is.


    I'm in shawnee and those are one of the two pairs I am looking at...there also is a pair of CRS in St. Louis where my wife travels about once a month...

    wheatfield is where toto went after he retired from the movie biz
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  • heiney9
    heiney9 Posts: 25,165
    edited September 2010
    If you have a choice get a pair of CRS+ preferrably the later pin/blade but blade/blade is good too. I personally never cared for the side by side tweeter version of SDA's which is what the CRS are.

    H9
    "Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass Pass Labs XA25 | EE Avant Pre | EE Mini Max Supreme DAC | MIT Shotgun S1 | Pangea AC14SE MKII | Legend L600 | BlueSound Node 3 - Tubes add soul!
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  • codyc1ark
    codyc1ark Posts: 2,532
    edited September 2010
    Ouch, I have a b/b 2 tweeter crs, you guys are making me feel like I should take them down to the hole and burn them! I haven't heard any other SDA's, but these are pretty impressive.
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  • thejck
    thejck Posts: 849
    edited September 2010
    NeilGabriel wrote: »
    I'm in shawnee and those are one of the two pairs I am looking at...there also is a pair of CRS in St. Louis where my wife travels about once a month...

    wheatfield is where toto went after he retired from the movie biz

    There is also one in Jeff city
    http://columbiamo.craigslist.org/ele/1920589802.html
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  • NeilGabriel
    NeilGabriel Posts: 1,487
    edited September 2010
    thejck wrote: »
    There is also one in Jeff city
    http://columbiamo.craigslist.org/ele/1920589802.html

    Nice price...maybe we shoul;d compare our inventory~!

    the Lawrence ones are CRS+ with pin/blade...the guy is now thinking of keeping them...he wants $400 which is pretty steep...the ones in St. Louis are $255 I think....I'd like to trade him some 5's with cash to boot....
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